ottogiron: add main.go for gophercon

Change-Id: I28efb8273e3689785115fb991e42338449fff817
Reviewed-on: https://go-review.googlesource.com/48975
Reviewed-by: Jessie Frazelle <me@jessfraz.com>

ottogiron/main.go

@@ -0,0 +1,12 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This package contains a contribution for the scratch repository.
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("gophercon rule!")
+}